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Mozilla Firefox Web Speech Component Spoofing Vulnerability

Vulnerability

A spoofing vulnerability has been identified in the Web Speech component of Mozilla Firefox. This issue was present in Firefox versions prior to 151 and has been reported to Bugzilla. The vulnerability allows for deceptive manipulation, although the specific details of the spoofing impact are not disclosed.

Impact

Exploitation of this vulnerability could lead to spoofing, allowing an attacker to create a false representation or impersonation within the Web Speech component.

Remediation

Users can upgrade to Firefox 151 to address this vulnerability.

Added: May 19, 2026, 2:38 PM
Updated: May 19, 2026, 2:38 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
0.6
exploitability
4.2
remediation
7.7
relevance
8.4
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.